CN109577168B - Bridge transverse bridge direction damping and energy dissipation mechanism and mounting method thereof - Google Patents
Bridge transverse bridge direction damping and energy dissipation mechanism and mounting method thereof Download PDFInfo
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- CN109577168B CN109577168B CN201811414010.4A CN201811414010A CN109577168B CN 109577168 B CN109577168 B CN 109577168B CN 201811414010 A CN201811414010 A CN 201811414010A CN 109577168 B CN109577168 B CN 109577168B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a bridge transverse direction shock absorption and energy dissipation mechanism and an installation method thereof, and the design key points are that a first radial rod of a reciprocating friction and energy dissipation unit is perpendicular to a first driving rod, the first driving rod is arranged at the end part of the first radial rod far away from a central rotating shaft, the first driving plate is provided with a strip-shaped groove, a first friction plate is arranged in the first driving plate in parallel along the axial extension direction of the central rotating shaft, and the first driving rod is inserted into the strip-shaped groove of the first driving plate; the reciprocating friction energy consumption unit further comprises: the two side plates are arranged in parallel, the end plates are connected with the end parts of the 2 vertical side plates, a clamping groove is formed in one side, opposite to each side plate, of each side plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first driving plate; the first friction plate is in contact with the end plate. The invention aims to provide a bridge transverse bridge direction damping and energy-consuming mechanism and an installation method thereof, and aims to solve the problem of bridge damping and energy-consuming.
Description
Technical Field
The invention relates to the field of road and bridge design, in particular to a transverse bridge direction damping and energy dissipation mechanism of a bridge and an installation method thereof.
Background
The anti-seismic energy consumption of the bridge is an important ring in the design of roads and bridges, for example, CN 108457169A discloses an anti-seismic damping device for a bridge, which comprises a primary anti-seismic damping structure and a secondary anti-seismic damping structure, wherein the primary anti-seismic damping structure drives a stop lever to move upwards through the rotation of a cam, and a top rod is matched with stop blocks at two sides below a cross beam to limit the horizontal displacement of the cross beam; the second-stage anti-seismic shock absorption structure drives the first gear to rotate by the vertical displacement of the ejector rod in the stop lever, then the rotation is transmitted to the first bevel gear by the telescopic universal coupling, and the first bevel gear is connected with the second-stage anti-seismic device to realize the inclined surface self-locking of the piston and the pressing block so as to achieve second-stage anti-seismic protection; meanwhile, the bridge abutment is protected through a connecting rod mechanism below the cross beam; the method well limits the displacement of the bridge beam, avoids the risk of beam falling, reduces the structural earthquake damage and the structural damage degree, and simultaneously realizes two-stage earthquake protection, thereby greatly improving the self earthquake resistance of the bridge, strengthening the buffer protection capability of the bridge pier in case of earthquake and having remarkable earthquake resistance effect.
However, for the extremely small space between the bridge deck and the cap beam of the bridge, how to design an applicable anti-seismic energy dissipation mechanism is impossible for the existing damper to be installed in the space, which is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a bridge transverse direction damping energy dissipation mechanism and an installation method thereof aiming at the defects of the prior art, so as to solve the problem that a damper cannot be arranged between a bridge plate and a cover beam.
A bridge transverse bridge damping and energy dissipating mechanism comprises: the device comprises a rack, a gear, a central rotating shaft, a bearing seat and a reciprocating friction energy consumption unit;
the gear is meshed with the rack and is arranged on the surface of the central rotating shaft; the central rotating shaft is arranged on the bearing seat;
wherein, the rack is arranged below the bridge deck; the bearing block is fixed on the upper surface of the cover beam 5-2;
the reciprocating friction energy consumption unit is positioned in the outer area of the cover beam;
a reciprocating friction dissipative unit, comprising: the first radial rod, the first driving plate and the first friction plate;
the first radial rod is perpendicular to the central rotating shaft, the first radial rod and the first driving rod are in a perpendicular relation, the first driving rod is arranged at the end part, far away from the central rotating shaft, of the first radial rod, the first driving plate is provided with a strip-shaped groove, the first driving plate is provided with a first friction plate in parallel along the axial extending direction of the central rotating shaft, and the first driving plate and the first friction plate are connected through a connecting plate, so that a gap is formed between the first driving plate and the first friction plate; the first driving rod is inserted into the strip-shaped groove of the first driving plate;
the reciprocating friction energy consumption unit further comprises: the two side plates are arranged in parallel, the end plates are connected with the end parts of the 2 vertical side plates, a clamping groove is formed in one side, opposite to each side plate, of each side plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first driving plate;
wherein the first friction plate is in contact with the end plate.
Further, the lateral plates and the end plates together constitute a U-shaped plate.
Further, the side direction board is vertical setting, and the bar groove of first drive plate sets up to the level setting.
Further, the lateral plates are horizontally arranged, and the strip-shaped grooves of the first driving plate are vertically arranged.
Further, the first friction plate and the end plate are made of steel plates.
Further, the first drive plate is integrally formed with the first friction plate.
Further, the central rotating shaft sequentially comprises from the gear to the end plate: the first section of central rotating shaft, the third section of central rotating shaft and the second section of central rotating shaft;
the first section of central rotating shaft and the second section of central rotating shaft are positioned on the same straight line; the reciprocating unit is arranged on the central rotating shaft of the second section;
a third section of central rotating shaft is arranged between the first section of central rotating shaft and the second section of central rotating shaft;
the third section of central rotating shaft is parallel to the first section of central rotating shaft, the third section of central rotating shaft deviates from the first section of central rotating shaft by a certain distance, the end part of the first section of central rotating shaft is vertically bent outwards, and the first section of central rotating shaft extends to the end part of the third section of central rotating shaft and then is vertically bent, namely the connection shape formed by the first section of central rotating shaft and the third section of central rotating shaft is'
”；
Be provided with first middle part friction unit that reciprocates on third section center rotating shaft, first middle part friction unit that reciprocates includes: a first middle drive plate, a first middle friction plate;
the first middle driving plate is provided with a strip-shaped groove, two end parts of the first middle driving plate are respectively provided with a first middle friction plate, and the third section of central rotating shaft is inserted into the strip-shaped groove of the first middle driving plate;
a vertical clamping groove is formed in one side, opposite to each lateral plate, of each lateral plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of each first middle driving plate;
the first middle friction plate is in contact with the lateral plates.
Furthermore, the first middle driving plate and the first middle friction plate are integrally formed, and the first middle friction plates at the two end parts of the first middle driving plate and the first middle driving plate form an I shape together.
Further, the lateral plate is connected with the first middle friction plate through bolts, and a strip-shaped bolt hole is formed in the first middle friction plate or the lateral plate.
A method for installing a damping and energy-consuming mechanism for a bridge comprises the following installation steps:
firstly, mounting a rack, a central rotating shaft and a bearing seat, wherein a gear and a radial rod are mounted on the central rotating shaft in advance; the lateral plates and the end plates are prefabricated into a whole;
secondly, 2 opposite lateral plates are arranged on the cover beam;
thirdly, the first driving plate and the first friction plate are connected together in advance, then the first driving plate is inserted into the clamping grooves of the lateral plates, and then the driving rod is installed at the end part of the radial rod and penetrates through the corresponding strip-shaped groove;
specifically, the end part of the radial rod is provided with a threaded hole, the outer surface of the driving rod is provided with threads, and the driving rod is circular; during installation, the driving rod penetrates through the threaded hole of the radial rod until penetrating through the strip-shaped groove of the driving plate.
The invention has the advantages that:
(1) the energy dissipation and shock absorption device has the advantages that the gear-rack, the central rotating shaft, the radial rod, the driving plate, the friction plate and the end plate are utilized to realize energy dissipation and shock absorption of the bridge, and particularly, reciprocating motions of an upper structure and a lower structure of the bridge are converted into mutual reciprocating motions between the friction plate and the end plate (corresponding to the technical scheme of the first embodiment).
(2) In the present application, the lateral plates adopt a horizontal direction, which facilitates the weight support of the driving plate and the friction plate (corresponding to the second technical solution of the embodiment).
(3) The application provides a scheme of a center rotating shaft offset design, wherein a driving plate is arranged on a third offset section of the center rotating shaft, and the reciprocating motion design of the upper structure and the lower structure of the bridge is converted into the mutual reciprocating motion between a friction plate and a lateral plate (corresponding to the technical scheme of the third embodiment).
(4) The application provides a scheme of symmetrical offset design (phase difference is 180 degrees) of the central rotating shaft, the contact surface of the third friction plate and the fourth friction plate corresponds to the fifth section of the central rotating shaft, the width of the friction contact surface is ensured, and the reciprocating motion design of the upper structure and the lower structure of the bridge is converted into the mutual reciprocating motion between the third friction plate and the fourth friction plate (corresponding to the technical scheme of the fourth embodiment).
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Fig. 1 is a cross-sectional view of a rack and pinion of the first embodiment.
Fig. 2 is a structural design diagram of the damping and energy dissipating mechanism according to the first embodiment.
FIG. 3 is a top view of the canopy beam, side plate, and reciprocating friction dissipating unit of the first embodiment.
Fig. 4 is a schematic connection diagram of the central rotating shaft and the first radial rod, the first driving rod and the first driving plate.
Fig. 5 is a diagram of the first friction plate and the end plate moving repeatedly by the rotation of the central shaft according to the first embodiment.
FIG. 6 is a top view of the canopy beam, the side plate, and the reciprocating friction dissipating unit according to the first embodiment.
Fig. 7 is a connection diagram of horizontal lateral plates of the second embodiment.
Fig. 8 is a structural elevation view of a shock-absorbing and energy-dissipating mechanism according to a third embodiment.
Fig. 9 is a top view of the structure of the third embodiment of the damper and dissipative mechanism.
Fig. 10 is a structural elevation view of a third embodiment in which a plurality of first intermediate portion reciprocating friction units are provided.
Fig. 11 is a structural elevation view of a damping and dissipating mechanism according to a fourth embodiment.
Fig. 12 is a top view of the damper dissipative mechanism according to the fourth embodiment.
Detailed Description
The embodiment one, horizontal bridge of bridge is to shock attenuation power consumption mechanism includes: the device comprises a rack 1-1, a gear 1-2, a central rotating shaft 3, a bearing seat 1-3 and a reciprocating friction energy consumption unit 2;
the gear 1-2 is meshed with the rack 1-1, and the gear 1-2 is arranged on the surface of the central rotating shaft 3; the number of the bearing blocks 1-3 is multiple, the central rotating shaft is arranged on the bearing blocks 1-3, and the axial displacement of the central rotating shaft is limited by the bearing blocks 1-3;
wherein, the rack 1-1 is arranged on the lower surface of the upper structure, in particular, below the bridge deck 5-1; the bearing seat 1-3 is fixed on the lower structure, specifically, is arranged on the upper surface of the cover beam 5-2;
the reciprocating friction energy consumption unit 2 is positioned in the outer area of the cover beam;
the reciprocating friction energy consumption unit 2 comprises: a first radial rod 2-1-1, a first driving rod 2-1-2, a first driving plate 2-1-3 and a first friction plate 2-1-4;
the first radial rod 2-1-1 is perpendicular to the central rotational axis, the first radial rod 2-1-1 is in a perpendicular relationship with the first drive rod 2-1-2, and the first driving rod 2-1-2 is arranged at the end part of the first radial rod 2-1-1 far away from the central rotating shaft, the first driving plate 2-1-3 is provided with a strip-shaped groove 2-1-3-1, and the first drive plate 2-1-3 is provided with a first friction plate 2-1-4 in parallel along the axial extension direction of the central rotating shaft, the first drive plate 2-1-3 is connected with the first friction plate 2-1-4 through a connecting plate, so that a gap is created between the first drive plate 2-1-3 and the first friction plate 2-1-4; the first driving rod 2-1-2 is inserted into the strip-shaped groove of the first driving plate 2-1-3;
the first driving plate 2-1-3 and the first friction plate 2-1-4 are integrally formed;
further comprising: the driving device comprises two vertical side plates 4 arranged in parallel and an end plate 6 connected with the end parts of the 2 vertical side plates 4, wherein the side plates 4 are vertically fixed on the front side or the rear side of a cover beam 5-2, a vertical clamping groove is formed in one side, opposite to each side plate 4, of each side plate 4, and clamping strips corresponding to the clamping grooves are arranged on two sides of a first driving plate 2-1-3;
the first friction plate is in contact with the end plate.
The side panels 4 and end panels 6 together form a U-shaped panel.
And the strip-shaped grooves of the first driving plates 2-1-3 are arranged horizontally, namely, the strip-shaped grooves are vertical to the surface of the lateral plate 4 and the direction of the clamping grooves on the lateral plate.
Through the clamping groove and the clamping block, the first driving plate 2-1-3 can reciprocate along the vertical direction of the clamping groove, so that the first friction plate 2-1-4 is driven to reciprocate up and down to rub with the end plate 6 for energy consumption.
In the first embodiment, the reciprocating friction energy dissipation unit 2 is arranged on the front side and/or the rear side of the cover plate, and is particularly suitable for seismic energy dissipation in the transverse direction of a bridge.
The second embodiment is different from the first embodiment in that the method further comprises the following steps: the cover beam comprises two parallel horizontal side plates 4, wherein the side plates 4 are fixed on the front side or the rear side of the cover beam, a horizontal clamping groove is formed in one side, opposite to each side plate 4, of each side plate 4, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first driving plate 2-1-3 and the second driving plate 2-2-3;
through the clamping groove and the clamping block, the first driving plate 2-1-3 can reciprocate along the horizontal direction of the clamping groove, so that the first friction plate 2-1-4 is driven to reciprocate left and right, and friction energy consumption is realized between the first driving plate and the end plate 6.
Matched with, the strip-shaped groove in the first driving plate 2-1-3 is arranged to be vertical, namely vertical to the surface where the lateral plate is located and the direction of the clamping groove on the lateral plate.
The direction of the side plates can be other directions, however, from the installation mode, the horizontal direction and the vertical direction are two easy installation modes, and meanwhile, the direction of the strip-shaped groove needs to be matched with the direction of the side plates and the direction of the card contact (namely, the vertical relation is kept).
However, the lateral plates are horizontally oriented, which has the advantage that the horizontal lateral plates can bear the weight of the driving plates, while the vertical lateral plates essentially bear the weight of the driving rods and also need temporary support when being installed, or are horizontally supported below the vertical lateral plates; therefore, the lateral plates have greater advantages than other orientations, with a horizontal solution; however, the disadvantage is that when the lateral plates are horizontal plates, the upper lateral plate cannot be directly connected with the bent cap, and at the moment, the upper lateral plate and the lower lateral plate can be supported and fixed by arranging a vertical support.
A method for installing a damping and energy-consuming mechanism for a bridge comprises the following installation steps:
firstly, mounting a rack, a central rotating shaft and a bearing seat, wherein a gear and a radial rod are mounted on the central rotating shaft in advance; the lateral plates and the end plates are prefabricated into a whole;
secondly, 2 opposite lateral plates are arranged on the cover beam;
thirdly, the first driving plate and the first friction plate are connected together in advance, then the first driving plate is inserted into the clamping grooves of the lateral plates, and then the driving rod is installed at the end part of the radial rod and penetrates through the corresponding strip-shaped groove;
specifically, the end part of the radial rod is provided with a threaded hole, the outer surface of the driving rod is provided with threads, and the driving rod is circular; during installation, the driving rod penetrates through the threaded hole of the radial rod until penetrating through the strip-shaped groove of the driving plate.
In the third embodiment, as shown in fig. 8-9, the central rotating shaft can be divided into four sections from the gear to the end plate: a first section of central rotating shaft 3-1, a third section of central rotating shaft 3-3 and a second section of central rotating shaft 3-2;
the rotating shafts of the first section of central rotating shaft 3-1 and the second section of central rotating shaft 3-2 are in the same straight line; the reciprocating unit 2 is arranged on a central rotating shaft 3-2 of the second section;
a third section of central rotating shaft 3-3 is arranged between the first section of central rotating shaft 3-1 and the second section of central rotating shaft 3-2;
the third section of central rotating shaft 3-3 is parallel to the first section of central rotating shaft 3-1, the third section of central rotating shaft 3-3 is offset from the first section of central rotating shaft 3-1 by a certain distance, the end part of the first section of central rotating shaft is vertically bent outwards, and is vertically bent after extending to the end part of the third section of central rotating shaft, namely the connection shape formed by the first section of central rotating shaft and the third section of central rotating shaft is'
”；
A first middle reciprocating friction unit is arranged on the third section of central rotating shaft 3-3, and comprises: a first middle drive plate 8-1, a first middle friction plate 8-2;
the first middle driving plate 8-1 is provided with a strip-shaped groove, two end parts of the first middle driving plate 8-1 are respectively provided with a first middle friction plate 8-2, and the third section of central rotating shaft 3-3 is inserted into the strip-shaped groove of the first middle driving plate 8-1;
the first middle driving plate 8-1 and the first middle friction plate 8-2 are integrally formed, and the first middle friction plates 8-2 at the two end parts of the first middle driving plate 8-1 and the first middle driving plate 8-1 form an I shape together;
a vertical clamping groove is formed in one side, opposite to each lateral plate 4, of each lateral plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first middle driving plate 8-1;
the first middle friction plate 8-2 is in contact with the lateral plate 4; further, the lateral plate is connected with the first middle friction plate through bolts, a strip-shaped bolt hole is formed in the first middle friction plate or the lateral plate, and the strip-shaped direction of the strip-shaped bolt hole is parallel to the direction of the strip-shaped groove of the first middle driving plate.
The first embodiment has a disadvantage in that only one friction plate can be provided because the driving plate moves up and down while the driving rod rotates the driving plate, and therefore, the central rotation shaft must be disconnected. Therefore, the number of drive rods can be set to substantially 1, which limits the energy consumption capability thereof.
The third embodiment has the advantage that the problem is solved, a plurality of third-section central rotating shafts 3-3 and a plurality of first middle reciprocating friction units can be arranged on the central rotating shaft, as shown in fig. 10, which is the application value of the third embodiment, the first embodiment has the advantage that only the friction dampers can be arranged at the end parts (the central rotating shaft must be disconnected), while the third embodiment has the advantage that the number of the friction dampers is not limited by the disconnection of the central rotating shaft and can be selected according to actual conditions.
Example four: and (5) continuing to improve on the basis of the third embodiment.
The central rotating shaft further comprises: a fourth section of central rotating shaft 3-4, a fifth section of central rotating shaft 3-5, and the fifth section of central rotating shaft 3-5 is collinear with the first section of central rotating shaft 3-1;
the central rotating shaft sequentially comprises from the gear to the end plate: a first section of central rotating shaft 3-1, a third section of central rotating shaft 3-3, a fifth section of central rotating shaft 3-5, a fourth section of central rotating shaft 3-4 and a second section of central rotating shaft 3-2;
the fourth section of central rotating shaft 3-4 is parallel to the fifth section of central rotating shaft 3-5, the fourth section of central rotating shaft 3-4 is offset from the fifth section of central rotating shaft 3-5 by a certain distance, and the fourth section of central rotating shaft 3-4 and the third section of central rotating shaft 3-3 rotate 180 degrees relative to the fifth section of central rotating shaft 3-5;
a second middle reciprocating friction unit is arranged on the fourth section of central rotating shaft 3-4, and comprises: a second middle drive plate, a second middle friction plate;
the second middle driving plate is provided with a strip-shaped groove, two end parts of the second middle driving plate are respectively provided with a second middle friction plate, and the fourth section of the central rotating shaft is inserted into the strip-shaped groove of the second middle driving plate;
the second middle driving plate and the second middle friction plate are integrally formed;
a vertical clamping groove is formed in one surface, opposite to each side plate 4, of each side plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the second middle driving plate;
the second middle friction plate is in contact with the lateral plate 4, further, the lateral plate is connected with the second middle friction plate through bolts, and strip bolt holes are formed in the second middle friction plate or the lateral plate.
A third friction plate 8-3 and a fourth friction plate 8-4 are respectively arranged on the opposite surfaces of the first middle friction plate and the second middle friction plate;
the third friction plate 8-3 and the fourth friction plate 8-4 are both vertical to the lateral plates;
the third friction plate 8-3 and the fourth friction plate 8-4 are connected through bolts, strip-shaped bolt holes are formed in the third friction plate 8-3 or the fourth friction plate 8-4, and the strip-shaped directions of the strip-shaped bolt holes are parallel to the direction of the strip-shaped groove of the second middle driving plate;
the direction of the clamping strip of the second middle driving plate, the direction of the clamping strip of the first middle driving plate and the direction of the clamping strip of the first driving plate are parallel.
When the rack driving gear rotates, the third section of central rotating shaft 3-3 and the fourth section of central rotating shaft 3-4 drive the first middle driving plate and the second middle driving plate to reciprocate, so that the third friction plate 8-3 and the fourth friction plate 8-4 are driven to reciprocate; specifically, when the lateral plate 4 is vertically arranged, the clamping strips of the first middle driving plate and the second middle driving plate are also vertically arranged, and the third friction plate 8-3 and the fourth friction plate 8-4 reciprocate up and down (reciprocate along the direction of the clamping groove);
when the lateral plate 4 is horizontally arranged, the clamping strips of the first middle driving plate and the second middle driving plate are also horizontally arranged, and the third friction plate 8-3 and the fourth friction plate 8-4 reciprocate left and right.
Particularly, the extension surfaces of the third friction plate and the fourth friction plate correspond to the fifth section of the central rotating shaft 3-5; the design is that the length of the first middle friction plate and the second middle friction plate is required, and two sides of the fifth section of central rotating shaft 3-5 are vacant spaces which can provide enough contact surfaces for the third friction plate and the fourth friction plate; if the third friction plate corresponds to the fifth segment of the central rotation shaft, the width thereof is necessarily limited to a large extent.
For the friction damper, the friction distance is a key factor influencing energy consumption, and relative to the first friction plate-end plate (stationary) of the first embodiment, the third friction plate and the fourth friction plate of the fourth embodiment (the phase difference between the third section central rotating shaft 3-3 and the fourth section central rotating shaft 3-4 is 180 °) generate relative motion; under the same condition, the offset distances from the third section of central rotating shaft 3-3 and the fourth section of central rotating shaft 3-4 to the first section of central rotating shaft are the same, and the offset distances from the first driving rod to the second section of central rotating shaft are the same, and the relative distance between the third friction plate and the fourth friction plate is 2 times of that between the first friction plate and the end plate. Therefore, the energy consumption effect is obviously improved.
For the third and fourth embodiments, the installation method is different from the above, the driving plate is firstly sleeved on the central rotating shaft, then the lateral plate is installed, and the direction of the driving plate is adjusted according to the clamping groove-clamping strip when the lateral plate is installed.
The design schemes of the first embodiment, the third embodiment and the fourth embodiment of the application are relatively independent.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a horizontal bridge of bridge is to shock attenuation power consumption mechanism which characterized in that includes: the device comprises a rack, a gear, a central rotating shaft, a bearing seat and a reciprocating friction energy consumption unit;
the gear is meshed with the rack and is arranged on the surface of the central rotating shaft; the central rotating shaft is arranged on the bearing seat;
wherein, the rack is arranged below the bridge deck; the bearing block is fixed on the upper surface of the cover beam;
the reciprocating friction energy consumption unit is positioned in the outer area of the cover beam;
a reciprocating friction dissipative unit, comprising: the first radial rod, the first driving plate and the first friction plate;
the first radial rod is perpendicular to the central rotating shaft, the first radial rod and the first driving rod are in a perpendicular relation, the first driving rod is arranged at the end part, far away from the central rotating shaft, of the first radial rod, the first driving plate is provided with a strip-shaped groove, the first driving plate is provided with a first friction plate in parallel along the axial extending direction of the central rotating shaft, and the first driving plate and the first friction plate are connected through a connecting plate, so that a gap is formed between the first driving plate and the first friction plate; the first driving rod is inserted into the strip-shaped groove of the first driving plate;
the reciprocating friction energy consumption unit further comprises: the two side plates are arranged in parallel, the end plates are connected with the end parts of the 2 vertical side plates, a clamping groove is formed in one side, opposite to each side plate, of each side plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first driving plate;
wherein, first friction plate and tip board contact, and the side direction board constitutes the U template with the tip board together, and the side direction board is vertical setting, and the bar groove of first drive plate sets up to the level and sets up, and the side direction board sets up for the level, and the bar groove of first drive plate sets up to vertical setting, and first friction plate adopts the steel sheet with the tip board, first drive plate and first friction plate integrated into one piece, and the central rotating shaft includes from the gear to the tip board direction in proper order: the first section of central rotating shaft, the third section of central rotating shaft and the second section of central rotating shaft;
the first section of central rotating shaft and the second section of central rotating shaft are positioned on the same straight line; the reciprocating unit is arranged on the central rotating shaft of the second section;
a third section of central rotating shaft is arranged between the first section of central rotating shaft and the second section of central rotating shaft;
the third section of central rotating shaft is parallel to the first section of central rotating shaft, the third section of central rotating shaft deviates from the first section of central rotating shaft by a certain distance, the end part of the first section of central rotating shaft is vertically bent outwards, and the first section of central rotating shaft extends to the end part of the third section of central rotating shaft and then is vertically bent, namely the connection shape formed by the first section of central rotating shaft and the third section of central rotating shaft is'
”；
Be provided with first middle part friction unit that reciprocates on third section center rotating shaft, first middle part friction unit that reciprocates includes: a first middle drive plate, a first middle friction plate;
the first middle driving plate is provided with a strip-shaped groove, two end parts of the first middle driving plate are respectively provided with a first middle friction plate, and the third section of central rotating shaft is inserted into the strip-shaped groove of the first middle driving plate;
a vertical clamping groove is formed in one side, opposite to each lateral plate, of each lateral plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of each first middle driving plate;
the first middle friction plate is in contact with the lateral plates.
2. The transverse bridge damping and energy dissipating mechanism according to claim 1, wherein the first middle driving plate and the first middle friction plate are integrally formed, and the first middle friction plates at the two ends of the first middle driving plate and the first middle driving plate form an I shape.
3. The transverse bridge damping and energy dissipating mechanism according to claim 1, wherein the lateral plate is connected to the first middle friction plate by bolts, and a bolt hole is formed in the first middle friction plate or the lateral plate.
4. The method for installing the transverse bridge direction damping and energy dissipating mechanism of the bridge as claimed in claim 1, the installation steps are as follows:
firstly, mounting a rack, a central rotating shaft and a bearing seat, wherein a gear and a radial rod are mounted on the central rotating shaft in advance; the lateral plates and the end plates are prefabricated into a whole;
secondly, 2 opposite lateral plates are arranged on the cover beam;
thirdly, the first driving plate and the first friction plate are connected together in advance, then the first driving plate is inserted into the clamping grooves of the lateral plates, and then the driving rod is installed at the end part of the radial rod and penetrates through the corresponding strip-shaped groove;
the end part of the radial rod is provided with a threaded hole, the outer surface of the driving rod is provided with threads, and the driving rod is circular; during installation, the driving rod penetrates through the threaded hole of the radial rod until penetrating through the strip-shaped groove of the driving plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811414010.4A CN109577168B (en) | 2018-11-26 | 2018-11-26 | Bridge transverse bridge direction damping and energy dissipation mechanism and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811414010.4A CN109577168B (en) | 2018-11-26 | 2018-11-26 | Bridge transverse bridge direction damping and energy dissipation mechanism and mounting method thereof |
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| CN109577168A CN109577168A (en) | 2019-04-05 |
| CN109577168B true CN109577168B (en) | 2021-01-05 |
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| FR2749900B1 (en) * | 1996-06-18 | 2001-11-30 | Jarret | METHOD AND DEVICE FOR DAMPING OR TAKING UP SUDDAN STRUCTURES APPLIED TO A STRUCTURE FOR EXAMPLE OF CIVIL ENGINEERING |
| CN102080421A (en) * | 2011-01-30 | 2011-06-01 | 东南大学 | Damping generation method through torsion type lead extrusion and damper thereof |
| CN104088374B (en) * | 2014-06-12 | 2016-03-23 | 清华大学 | Metal composite frcition damper |
| CN106758795B (en) * | 2017-01-19 | 2019-03-22 | 重庆科技学院 | Shock-absorbing bridge support |
| CN207846196U (en) * | 2018-01-29 | 2018-09-11 | 中国路桥工程有限责任公司 | Compound angle damper displacement |
-
2018
- 2018-11-26 CN CN201811414010.4A patent/CN109577168B/en active Active
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